Top commercial HVAC contractors in Michigan, ranked by ChatGPT answers

Places ChatGPT showed

• Andy J Egan Company · 4.5★ · HVAC contractor
• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• Samco Facilities Maintenance · 3.0★ · HVAC contractor
• Allied Mechanical Services, Inc. · 4.8★ · Mechanical contractor
• Advantage Mechanical-Refrigeration Inc · 5.0★ · Mechanical contractor
• Level One HVAC Services Inc. · 4.5★ · HVAC contractor
• De-Cal Mechanical Contractors · 4.8★ · Mechanical contractor
• Progressive Mechanical · 4.5★ · Mechanical contractor
• Altech Mechanical Service · 5.0★ · HVAC contractor
• ServicePro of West Michigan · 5.0★ · HVAC contractor
• Mall City Mechanical, Inc. · 5.0★ · Mechanical contractor
• Contrast Mechanical, Inc. · 4.6★ · Mechanical contractor

If you mean commercial/industrial HVAC rather than residential HVAC, Michigan has several strong options. I’d shortlist contractors based on commercial specialization, geographic coverage, emergency service, controls, mechanical construction, and track record—not just Google ratings.

My top Michigan commercial HVAC shortlist

1. Andy J Egan Company — Best for large, complex facilities
2. Long-established Michigan mechanical contractor.
3. Strong commercial, industrial, and institutional capabilities.
4. Good fit for major HVAC projects, maintenance, and integrated mechanical systems.
5. Air Handlers Commercial HVAC — Best Southeast Michigan specialist
6. Commercial/industrial HVAC design, installation, service, and maintenance.
7. Based in Auburn Hills and serving Southeast Michigan.
8. Particularly worth considering for facility managers who need ongoing service rather than just an installation.
9. Samco Facilities Maintenance — Best for service + refrigeration + food facilities
10. Livonia-based commercial HVAC/R contractor.
11. Handles HVAC, refrigeration, food equipment, RTUs, boilers, chillers, ventilation and controls.
12. Offers 24/7 emergency service and preventive-maintenance programs.
13. Allied Mechanical Services, Inc. — Best West Michigan option
14. Kalamazoo-based commercial/industrial/institutional mechanical contractor.
15. Established in 1965, with work spanning industrial, healthcare, education, municipal and commercial facilities.
16. Strong choice if your property is in West Michigan.
17. Advantage Mechanical-Refrigeration Inc — Best broad mechanical/HVAC-R provider
18. West Michigan-based.
19. Commercial/industrial/institutional HVAC, refrigeration, plumbing and piping.
20. 24/7 emergency response and preventive-maintenance capabilities.
21. Level One HVAC Services Inc. — Best for facility-management programs
22. Focuses on commercial/industrial customers.
23. Serves manufacturing, warehouses, healthcare, schools, retail, restaurants and other facilities.
24. Offers preventative maintenance, HVAC/R, refrigeration and controls.
25. De-Cal Mechanical Contractors — Best for major mechanical/industrial work
26. Commercial, industrial and institutional contractor.
27. Particularly capable when HVAC is part of a larger mechanical project involving piping, boilers, chillers, controls or plumbing.
28. Progressive Mechanical — Best for large construction projects
29. Clawson-based full-service mechanical contractor.
30. Commercial, industrial, institutional, municipal and government work.
31. Particularly appropriate for substantial construction or renovation projects requiring several mechanical trades.

A few specialized picks

• Altech Mechanical Service — Ann Arbor/Southeast Michigan; commercial HVAC, refrigeration and controls, with 24-hour emergency support.
• ServicePro of West Michigan — Grand Rapids/West Michigan; 24/7 commercial and industrial HVAC/R and facility maintenance.
• Mall City Mechanical, Inc. — Kalamazoo/West Michigan; HVAC, plumbing and mechanical services for commercial, industrial, healthcare and institutional facilities.
• Contrast Mechanical, Inc. — Macomb; good candidate for commercial/industrial mechanical construction and renovation.

If I were choosing

Need	I'd start with
Large industrial/manufacturing facility	Egan, De-Cal, Progressive
Southeast Michigan facility maintenance	Samco, Air Handlers, Level One
West Michigan	Allied Mechanical, Advantage Mechanical, ServicePro
Commercial HVAC + refrigeration	Samco, Advantage, Level One
New construction/design-build	Egan, Progressive, De-Cal
Boilers/chillers/complex mechanical systems	De-Cal, Egan, Progressive
Restaurant/commercial kitchen	Samco or a specialized kitchen-ventilation contractor
24/7 emergency response	Samco, Advantage, ServicePro, Level One

One caveat: some online "best contractor" lists mix residential companies with genuine commercial mechanical contractors. For a commercial building, manufacturing plant, warehouse, school, hospital, restaurant group, or multi-property portfolio, I'd prioritize the firms above that have dedicated commercial/industrial operations. Michigan directories also identify firms such as Stuart Mechanical, Briggs Mechanical and Robertson Morrison among commercial mechanical contractors.

If you tell me what type of facility you have, approximate size, and Michigan city/region, I can narrow this to the 5 best contractors for your specific project and compare their capabilities, reviews, service area, certifications, and contact information.

Places ChatGPT showed

• Level One HVAC Services Inc. · 4.5★ · HVAC contractor
• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• De-Cal Mechanical Contractors · 4.8★ · Mechanical contractor
• Allied Mechanical Services, Inc. · 5.0★ · Mechanical contractor
• Andy J Egan Company · 4.5★ · HVAC contractor
• Samco Facilities Maintenance · 3.0★ · HVAC contractor
• Allied Mechanical Services, Inc. · 4.8★ · Mechanical contractor
• Altech Mechanical Service · 5.0★ · HVAC contractor

For office buildings and light-industrial facilities, I’d favor contractors with genuine commercial/industrial depth rather than residential HVAC companies that also take commercial calls. Based on current Michigan contractor listings and company capabilities, these are the firms I’d put on a shortlist:

Contractor	Best fit	Why I’d consider them
Level One HVAC Services Inc.	Office + light industrial, Southeast MI	Strong commercial/industrial HVAC/R focus, including RTUs, boilers, chillers, make-up air, ventilation, controls and preventative maintenance. Good all-around choice.
Air Handlers Commercial HVAC	Larger offices + industrial facilities, SE Michigan	Explicitly focused on commercial/industrial design, build, installation and service; based in Auburn Hills and serving Southeast Michigan.
De-Cal Mechanical Contractors	Industrial/light manufacturing + complex commercial	Particularly attractive when HVAC is part of a larger mechanical scope. Capabilities include chillers, boilers, hydronics, VRF, controls, piping and 24-hour emergency service.
Allied Mechanical Services, Inc.	West Michigan / Grand Rapids	Long-established commercial/industrial mechanical contractor with construction, fabrication, piping, hydronic and sheet-metal capabilities. A strong choice for larger facility projects.
Andy J Egan Company	Large commercial/industrial projects statewide	More of a full mechanical contractor than a pure HVAC service shop. Particularly useful if your project involves HVAC plus process piping, steam/condensate, compressed air or other mechanical systems.
Samco Facilities Maintenance	Ongoing facility maintenance, Metro Detroit	Good fit for property/facility managers wanting recurring PM, emergency service and one-vendor facility support. It specifically markets service to offices, industrial parks and manufacturing facilities.
Allied Mechanical Services, Inc.	Kalamazoo / West Michigan	Another strong West Michigan option, with commercial, industrial and institutional work and substantial fabrication/mechanical capability.
Altech Mechanical Service	Ann Arbor / Southeast Michigan	Commercial/industrial HVAC, refrigeration, controls, retrofits and emergency service; a good candidate for an existing office/industrial facility needing both service and upgrades.

My top picks by situation

• Best overall for a typical office + light-industrial portfolio: Level One HVAC
• Best for a larger mechanical project: De-Cal or Andy J Egan
• Best for Southeast Michigan: Air Handlers or Level One
• Best for West Michigan: Allied Mechanical Services
• Best for ongoing PM/service rather than major construction: Samco
• Best when controls/BAS are important: Level One or De-Cal
• Best when HVAC is intertwined with piping/mechanical systems: De-Cal or Egan

One useful independent screening resource is the Michigan Mechanical Contractors Association directory. Its contractor search lets you filter by commercial/industrial work and capabilities such as controls, heating, air conditioning, process piping, sheet metal, refrigeration, clean rooms and ventilation.

What I'd ask before awarding the work

For an office/light-industrial facility, I would ask each bidder for:

1. Three comparable facilities they've serviced recently—ideally similar square footage and equipment.
2. Their 24/7 emergency response commitment and guaranteed response time.
3. Whether technicians are in-house or subcontracted.
4. Experience with your specific equipment: RTUs, chillers, boilers, VAV, VRF, make-up air, BAS/DDC, etc.
5. A sample preventive-maintenance agreement, including what inspections and measurements are actually performed.
6. Their approach to controls/BAS optimization and energy reduction.
7. Whether they can handle after-hours work without disrupting occupants or production.
8. Proof of Michigan licensing, insurance and relevant certifications.

For industrial facilities, I'd put considerably more weight on demonstrated plant experience than on Google ratings. Michigan's commercial contractor directory, for example, specifically distinguishes commercial and industrial capabilities and lists firms with process piping, controls, refrigeration, ventilation and other capabilities that can matter in industrial environments.

If you tell me the Michigan city/area, approximate building square footage, and whether you're looking for ongoing service, a replacement project, or a new installation, I can narrow this to 3–5 contractors and compare them on service area, capabilities, reputation, and likely fit.

Places ChatGPT showed

• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• De-Cal Mechanical Contractors · 4.8★ · Mechanical contractor
• Level One HVAC Services Inc. · 4.5★ · HVAC contractor
• Altech Mechanical Service · 5.0★ · HVAC contractor
• Adrian Mechanical Services Co · 4.8★ · Mechanical contractor
• Seaman's Mechanical · 2.0★ · HVAC contractor
• ServicePro of West Michigan · 5.0★ · HVAC contractor
• Allied Mechanical Services, Inc. · 4.8★ · Mechanical contractor

If you need commercial HVAC contractors in Michigan specifically for rooftop units (RTUs) and boiler systems, I’d shortlist these based on documented commercial scope, equipment expertise, service coverage, and current business information:

• Air Handlers Commercial HVAC — Auburn Hills / Southeast Michigan. Strong equipment match: RTUs, steam and hot-water boilers, chillers, make-up air, controls, pumps, and other commercial systems. A good candidate for a facility with mixed rooftop + hydronic equipment.
• De-Cal Mechanical Contractors — Warren / Metro Detroit. Particularly strong if the boiler side is substantial. They handle RTUs, hydronic and steam systems, boiler installation/rebuild/repair, chillers, and commercial/industrial HVAC. They also advertise emergency service.
• Level One HVAC Services Inc. — New Hudson / statewide Michigan. Commercial/industrial specialist covering RTUs, boilers, chillers, make-up air, ventilation, refrigeration, and controls. Their Grand Rapids operation gives them useful West Michigan reach.
• Altech Mechanical Service — Ann Arbor / Southeast Michigan. A particularly good fit around Ann Arbor for commercial HVAC design/build and service, with both steam/hot-water boilers and rooftop units explicitly in its scope.
• Adrian Mechanical Services Co — Adrian / Southeast Michigan. Broad commercial mechanical capability, including hot-water and steam boilers, RTUs, AHUs, make-up air, chillers, and controls.
• Seaman's Mechanical — Grand Rapids / West Michigan. Long-established commercial/industrial mechanical contractor. Their published capabilities include rooftop packaged units and boiler inspection work; they also have substantial piping/mechanical capabilities.
• ServicePro of West Michigan — Grand Rapids / West Michigan. Worth considering when 24/7 service and preventative maintenance are priorities. Their commercial scope includes RTUs and boiler testing, inspection, maintenance, and repair.
• Allied Mechanical Services, Inc. — Kalamazoo / West Michigan. An established commercial/industrial mechanical contractor with 24/7 service and experience across healthcare, education, industrial, municipal, and commercial facilities.

My top picks

If I were soliciting bids, I'd start with:

1. Air Handlers — strongest all-around Southeast Michigan RTU + boiler fit.
2. De-Cal Mechanical — especially if you have significant steam/hydronic boiler work or a larger mechanical project.
3. Level One HVAC — excellent choice if you need a contractor with Michigan-wide commercial coverage.
4. Seaman's Mechanical — strongest consideration for a West Michigan industrial/institutional facility.
5. Altech Mechanical — good Southeast Michigan/Ann Arbor option for both service and larger HVAC projects.

Two other companies are particularly worth getting quotes from: Friedman Mechanical in Farmington Hills, which explicitly handles commercial RTUs and boilers and offers 24/7 service, and Temperature Mechanics in Oakland County, which specifically lists RTUs, boilers and chillers among its commercial equipment and has been operating since 1986.

If you tell me the Michigan city/ZIP, building type and approximate size, plus whether this is service/maintenance, replacement, or a new installation, I can narrow this to the best 3–5 contractors and compare their service areas, ratings, emergency coverage, boiler/RTU capabilities, and likely fit.

Places ChatGPT showed

• Pro-Tech Mechanical Services · 5.0★ · Air conditioning contractor
• J.F. Jacobs, Inc · 5.0★ · HVAC contractor
• BC Ten Air · 1.0★ · HVAC contractor
• Crosswind Mechanical · Heating & Air Conditioning/HVAC
• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• Level One HVAC Services Inc. · 4.5★ · HVAC contractor
• ProTemp · 4.9★ · HVAC contractor
• ServicePro of West Michigan · 5.0★ · HVAC contractor
• Altech Mechanical Service · 5.0★ · HVAC contractor
• Expert Mechanical Service · 4.7★ · Heating contractor
• Samco Facilities Maintenance · 3.0★ · HVAC contractor
• Delta T Heating & Cooling · 5.0★ · Furnace repair service

Yes. I found several Michigan contractors that explicitly advertise 24/7 or 24-hour emergency service for commercial HVAC, rather than merely saying they handle emergencies.

Contractor	Area	Commercial focus	Emergency service
Pro-Tech Mechanical Services	Lower Peninsula / Lansing area	Commercial & industrial HVAC/R	24/7 emergency repairs; statewide Lower Peninsula coverage
J.F. Jacobs, Inc	Livonia / Metro Detroit	Commercial HVAC, refrigeration & boilers	24/7 emergency HVAC/R service
BC Ten Air	Milford / Southeast Michigan	Commercial & industrial HVAC/R + electrical	24/7/365 emergency service
Crosswind Mechanical	Allen Park / Southeast Michigan	Commercial HVAC/R	24/7 commercial emergency service
Air Handlers Commercial HVAC	Auburn Hills / Southeast Michigan	Commercial & industrial HVAC	Advertises 24/7/365 availability
Level One HVAC Services Inc.	New Hudson / Michigan	Commercial & industrial HVAC/R	24/7/365 emergency response
ProTemp	Holland / West Michigan	Commercial & industrial HVAC/R	24 hours/day, 365 days/year emergency service
ServicePro of West Michigan	Grand Rapids / West Michigan	Commercial & industrial HVAC/R	24/7 service
Altech Mechanical Service	Ann Arbor	Commercial & industrial HVAC/R	24-hour emergency service
Expert Mechanical Service	Wyandotte / Southeast Michigan	Commercial/institutional HVAC-R & mechanical	24/7/365 service
Samco Facilities Maintenance	Livonia / Metro Detroit	Commercial HVAC/R & facility maintenance	24/7 emergency response
Delta T Heating & Cooling	Grand Rapids area	Residential + commercial HVAC	24/7 emergency service

Strongest commercial-only options

If this is for a facility, manufacturing plant, office building, healthcare facility, retail site, or multi-site commercial operation, I'd put these toward the top of the list:

• Pro-Tech Mechanical — particularly broad Lower Peninsula coverage and a strong commercial/industrial orientation.
• Friedman Mechanical — commercial-only contractor in Southeast Michigan, with an explicitly staffed 24/7 emergency dispatch operation.
• J.F. Jacobs — commercial/industrial/institutional HVAC, refrigeration and boilers, with 24/7 emergency service.
• BC Ten Air — useful if you want HVAC/R plus electrical from the same contractor; it advertises 24/7 emergency repairs.
• Crosswind Mechanical — specifically confirms 24/7 emergency HVAC/R for commercial facilities.
• Pleune Service Company — long-established Michigan commercial/industrial HVAC and boiler specialist with 24-hour service.

One caveat: “24/7 emergency service” doesn't necessarily mean a technician is physically dispatched within a guaranteed number of minutes. Before selecting a contractor, I'd ask about after-hours dispatch, guaranteed response time, emergency rates, geographic coverage, parts availability, and whether they maintain your specific equipment brands.

If you tell me which Michigan city/region (e.g., Detroit, Grand Rapids, Lansing, Ann Arbor, Traverse City), I can narrow this to the 5 best commercial contractors nearby and compare their 24/7 response coverage, phone numbers, specialties, and service areas.

Places ChatGPT showed

• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• Level One HVAC Services Inc. · 4.5★ · HVAC contractor
• Samco Facilities Maintenance · 3.0★ · HVAC contractor
• De-Cal Mechanical Contractors · 4.8★ · Mechanical contractor
• Expert Mechanical Service · 4.7★ · Heating contractor
• Progressive Mechanical · 4.5★ · Mechanical contractor

If you mean commercial/industrial HVAC—not primarily residential contractors—I’d put these Southeast Michigan firms on the shortlist. I weighted commercial specialization, longevity, emergency response, maintenance capability, controls/design-build depth, and local presence more heavily than raw review counts.

My top choices

1. Air Handlers Commercial HVAC — Auburn Hills
2. Best overall for larger commercial/industrial facilities.
3. Operating since 1985, with experience in industrial heating/cooling/refrigeration, chillers, boilers, air handlers and building automation. Its business listing shows 5.0/5 from 44 reviews, which is unusually strong for a commercial-focused contractor.
4. Particularly attractive for Oakland County and northern Metro Detroit.
5. Level One HVAC Services Inc. — New Hudson
6. Best for industrial/manufacturing and complex commercial systems.
7. Offers 24/7 emergency service, design-build, commercial/industrial piping, boilers, make-up air, refrigeration and controls. It specifically markets to manufacturing, warehouses, healthcare, schools, automotive and data-center customers.
8. Business listing: 4.5/5 from 48 reviews.
9. Samco Facilities Maintenance — Livonia
10. Best for multi-site service, preventive maintenance and 24/7 response.
11. Serving Southeast Michigan since 1997, with 25+ technicians and coverage throughout Wayne, Oakland, Macomb and Washtenaw counties. It handles HVAC, refrigeration, food equipment and building automation.
12. A particularly good fit for restaurants, retail, manufacturing and facilities with lots of rooftop equipment.
13. One caveat: its structured business listing currently has only two reviews, so I'd rely more on its operating history and references than the displayed review score.
14. De-Cal Mechanical Contractors — Warren
15. Best for major mechanical/industrial projects.
16. Much broader than an HVAC service company: HVAC, pipefitting, controls, chillers, boilers, hydronic/steam systems and industrial mechanical work. Its business listing describes commercial, industrial and institutional work and after-hours emergency capability.
17. I'd consider De-Cal when the project involves large mechanical infrastructure, industrial plants, healthcare or institutional facilities, rather than just replacing a rooftop unit.
18. Expert Mechanical Service — Wyandotte
19. Strong choice for Downriver/Wayne County.
20. Commercial/institutional HVAC-R, boilers, refrigeration, maintenance and emergency service; the business listing indicates 24-hour availability.
21. Worth considering if your facility is around Wyandotte, Dearborn, Allen Park, Taylor or the Downriver area.
22. Progressive Mechanical — Clawson
23. Best for large, complex commercial/industrial construction.
24. A full-service mechanical contractor rather than simply an HVAC service shop, with experience in commercial, industrial, institutional, municipal and government projects.
25. Particularly worth a look for new construction, major renovations and projects requiring coordination with multiple trades.

Two more I'd seriously consider

• Friedman Mechanical — Farmington Hills: 35+ years of commercial experience, commercial-only focus, in-house technicians/no subcontractors, 24/7 emergency service, preventive maintenance and BAS/DDC controls.
• Temperature Mechanics — Bloomfield Hills: Established in 1986 and specifically focused on commercial HVAC, with experience on rooftops, boilers and chillers and a strong reported customer rating.

How I'd narrow it down

If your priority is…	I'd call first
General commercial HVAC service	Air Handlers
Manufacturing / industrial plant	Level One or De-Cal
Multi-location / retail / restaurants	Samco
Large mechanical construction project	De-Cal or Progressive
Oakland County / northern Metro Detroit	Air Handlers or Temperature Mechanics
Downriver	Expert Mechanical
Building automation / controls	Friedman or Level One
Preventive-maintenance contract + emergency response	Samco or Friedman

My personal first three calls for a typical Southeast Michigan commercial facility would be Air Handlers, Level One, and Samco. They represent somewhat different strengths, so getting proposals from all three should give you a useful benchmark rather than simply three similar bids.

If you tell me what type of facility you have (office, warehouse, manufacturing, restaurant, medical, multifamily, etc.), approximate square footage, and whether you're looking for service/maintenance or a new installation, I can narrow this to the 3 best contractors for your specific situation and compare their licensing, certifications, service coverage, reviews, and likely fit.

Places ChatGPT showed

• Hurst Mechanical · 4.4★ · HVAC contractor
• Allied Mechanical Services, Inc. · 5.0★ · Mechanical contractor
• Advantage Mechanical-Refrigeration Inc · 5.0★ · Mechanical contractor
• ServicePro of West Michigan · 5.0★ · HVAC contractor
• Van Dyken Mechanical, Inc · 4.1★ · Mechanical contractor

If by West Michigan you mean the Grand Rapids–Holland–Muskegon–Kalamazoo corridor, I’d put these near the top of the list for commercial/industrial HVAC. I’m ranking them by commercial depth, service capability, geographic coverage, and evidence of handling larger/complex systems—not simply consumer star ratings.

My shortlist

1. Hurst Mechanical — Best overall for large commercial/industrial
2. One of the strongest all-around choices in West Michigan.
3. Established in 1979, with roughly 150 employees, 110 vehicles, and offices serving Grand Rapids, Muskegon, Kalamazoo and Traverse City.
4. Handles HVACR, controls, design-build, piping, plumbing, refrigeration, electrical, sheet metal and energy consulting.
5. Particularly strong for manufacturing, warehouses, large commercial buildings, boilers, chillers, cooling towers and complex mechanical systems.
6. Offers 24/7 emergency service and comprehensive maintenance programs.
7. My pick if you have a substantial facility or complicated mechanical infrastructure.
8. Allied Mechanical Services, Inc. — Best for major mechanical projects
9. Full-service commercial/industrial mechanical contractor in Grand Rapids.
10. Strong fit where HVAC is part of a larger mechanical, piping, fabrication or construction project.
11. Particularly attractive for owners, GCs and facility managers who want substantial in-house fabrication and project capability.
12. 24-hour emergency service is available.
13. Advantage Mechanical-Refrigeration Inc — Best for HVAC + refrigeration
14. Based in Cedar Springs and focused heavily on commercial/industrial/institutional work.
15. HVAC, refrigeration, plumbing and piping under one roof, with 24/7 emergency service.
16. A particularly good candidate for food processing, restaurants, cold storage, manufacturing and facilities where refrigeration is mission-critical.
17. Crossroads Mechanical LLC — Best for complex troubleshooting
18. Hudsonville-based commercial/industrial HVAC/R contractor.
19. Their specialty is more than swapping equipment: they emphasize diagnostics, controls/BAS troubleshooting, boilers, process chillers, industrial burners, refrigeration and preventive maintenance.
20. They cite experience with manufacturing facilities, schools, healthcare, warehouses and other demanding facilities.
21. I'd put them high on the list if you have a recurring problem that other HVAC companies haven't been able to diagnose.
22. ServicePro of West Michigan — Best for 24/7 service/maintenance
23. Grand Rapids-based commercial/industrial service and maintenance operation.
24. 24/7 availability and a broad mechanical service offering.
25. Good fit if your priority is keeping an existing facility running, rather than primarily undertaking a major construction project.
26. Troost Service — Best local/family-owned service contractor
27. Troost has been serving West Michigan since 1982 and focuses specifically on commercial HVAC mechanical contracting.
28. Offers maintenance, HVAC, ventilation/piping, installation/upgrades, repair and design/build engineering.
29. Covers Grand Rapids, the lakeshore, Muskegon, Holland, Lansing, Battle Creek and Kalamazoo, with 24/7/365 service.
30. A very good option if you value a locally owned contractor with broad West Michigan coverage.
31. Van Dyken Mechanical, Inc — Strong design/build option
32. Grandville-based commercial/industrial mechanical contractor.
33. Good fit for new construction, renovations, industrial facilities, healthcare and controlled environments, with HVAC, piping, fabrication and commissioning capabilities.

Also worth getting a bid from

• Level One HVAC — strong commercial/industrial orientation, 25+ years in business, 24/7/365 service, and coverage throughout West Michigan.
• Vander Hyde Services — particularly attractive for commercial service/repair where rapid response matters; they advertise 24-hour emergency service and have nearly two decades of commercial HVAC experience.
• Service Professor — a larger local HVAC company with commercial installation, maintenance and repair capabilities and Carrier Factory Authorized Dealer status.
• Trane Grand Rapids — worth considering for a major Trane equipment/system project, controls, energy services or building automation. Their local commercial office handles repairs, maintenance, contracting, controls and energy solutions.

How I'd narrow it down

If you need...	I'd start with...
Large industrial/manufacturing facility	Hurst Mechanical
Major new construction / design-build	Hurst or Allied Mechanical
Chillers, boilers, cooling towers	Hurst
HVAC + refrigeration	Advantage Mechanical
Difficult recurring HVAC problem	Crossroads Mechanical
24/7 maintenance/service	Troost or ServicePro
West Michigan-wide coverage	Troost or Hurst
Controls / BAS / energy optimization	Hurst or Trane
Commercial building / office / retail	Troost, ServicePro, Vander Hyde

If this is for a real facility you're responsible for, I wouldn't simply call the highest-rated residential HVAC company. Commercial HVAC expertise varies enormously once you get into RTUs, VAVs, chillers, boilers, BAS controls, hydronics, makeup air, process cooling, etc.

If you tell me what type of building you have (manufacturing, warehouse, office, healthcare, restaurant, multifamily, etc.), approximate square footage, and whether you're looking for service/maintenance or a replacement/new installation, I can narrow this to the 3 contractors I'd actually invite to bid.

Places ChatGPT showed

• Campbell Mechanical Services · 4.6★ · HVAC contractor
• Friedman Mechanical · 5.0★ · HVAC contractor
• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• Pro-Tech Mechanical Services · 5.0★ · Air conditioning contractor

Yes. Based on the depth of the published programs—not just who advertises “maintenance”—I’d put these Michigan commercial HVAC contractors on the shortlist.

My top picks

Contractor	Best for	PM program strength
Campbell Mechanical Services	Large/complex commercial, industrial & institutional facilities	Excellent
Friedman Mechanical	Southeast Michigan commercial buildings	Excellent
Air Handlers Service Corporation	Metro Detroit property portfolios & long-term planning	Excellent
Pro-Tech Mechanical	Statewide Michigan coverage, industrial/commercial	Very good
Johnson Controls	Large facilities, BAS/controls, predictive maintenance	Excellent / enterprise
Trane	Trane equipment, connected monitoring & analytics	Excellent / enterprise

1\. Campbell Mechanical Services — strongest overall traditional PM program

★ 4.6 · HVAC contractor · Closed

[Directions](https://www.google.com/maps/dir/?api=1&destination=Campbell%20Mechanical%20Services%2C2875%20Crane%20Way%2C%20Northwood%2C%20OH%2043619%2C%20United%20States) [Website](https://www.campbellinc.com/?utm_source=chatgpt.com) [Call](tel:+1 419-910-3600)

Campbell stands out because its program goes beyond periodic tune-ups. It describes a proactive/predictive maintenance approach, benchmarking the building first, identifying efficiency opportunities, and continuing with energy monitoring and diagnostics. It also offers guaranteed preventive maintenance and 24/7 service.

Its published program is particularly compelling for manufacturing, healthcare, schools/universities, senior living and larger commercial buildings. Campbell has operated since 1968 and serves Southeast Michigan as well as Northwest Ohio.

Why I'd call them: If you want a contractor to take some ownership of the building's overall mechanical performance—not merely change filters and inspect equipment.

• * *

2\. Friedman Mechanical — best-documented PM program for Southeast Michigan

★ 5.0 · HVAC contractor · Open

[Directions](https://www.google.com/maps/dir/?api=1&destination=Friedman%20Mechanical%2C34975%20W%2012%20Mile%20Rd%2C%20Farmington%20Hills%2C%20MI%2048331%2C%20United%20States) [Website](https://friedmanmechanical.com/?utm_source=chatgpt.com) [Call](tel:+1 248-636-2000)

Friedman's program is unusually specific about what the customer receives. Plans can be monthly, quarterly or semi-annual, with:

• Comprehensive mechanical inspections
• Coil cleaning
• Refrigerant verification
• Controls calibration
• Safety testing
• Written technician reports
• Prioritized corrective-action recommendations
• Equipment-condition trending across visits
• Priority dispatch for maintenance customers
• Consistent technicians who become familiar with the facility

They also perform a baseline inspection when taking over an existing system.

Friedman is commercial-only, with 35+ years of experience, in-house technicians and 24/7 emergency response across Southeast Michigan.

My take: Probably the best choice if you're a facility manager in Detroit/Ann Arbor/Troy/Farmington Hills and want a hands-on PM relationship with good documentation.

• * *

3\. Air Handlers Commercial HVAC — best for risk-based maintenance and capital planning

★ 5.0 · HVAC contractor · Closed

[Directions](https://www.google.com/maps/dir/?api=1&destination=Air%20Handlers%20Commercial%20HVAC%2C1740%20Opdyke%20Ct%2C%20Auburn%20Hills%2C%20MI%2048326%2C%20United%20States) [Website](https://www.airhandlers.com/?utm_source=chatgpt.com) [Call](tel:+1 248-625-8913)

Air Handlers has an interesting approach called Predictable HVAC™. Rather than simply selling a recurring service contract, they start with a commercial HVAC Risk & Cost Audit that assesses equipment, assigns failure-risk scores, develops a 12-month repair-versus-replacement outlook and creates a budget-level cost forecast.

That's valuable if you're managing a portfolio of aging RTUs, boilers, chillers, etc. and need to answer not just “What maintenance is due?” but “What is likely to fail and what should we budget for next year?”

They're based in Auburn Hills and have been serving Southeast Michigan commercial/industrial facilities since 1985.

My take: I'd put them near the top for a property manager with multiple buildings or a significant deferred-maintenance problem.

• * *

4\. Pro-Tech Mechanical Services — strong statewide option

★ 5.0 · Air conditioning contractor · Open

[Directions](https://www.google.com/maps/dir/?api=1&destination=Pro-Tech%20Mechanical%20Services%2C13700%20Bluff%20Rd%2C%20Traverse%20City%2C%20MI%2049686%2C%20United%20States) [Website](https://www.protechhvac.net/?utm_source=chatgpt.com) [Call](tel:+1 517-272-4325)

Pro-Tech is worth considering if you're looking beyond Metro Detroit. Its commercial offering includes preventive maintenance contracts, controls/DDC service, air/hydronic balancing, boiler and chiller work, refrigeration and CSD-1 boiler/chiller inspections.

Its Detroit operation advertises customizable PM programs and 24/7 commercial service, with plans built around the building's equipment and operating schedule.

My take: Particularly attractive for industrial facilities, facilities with boilers/chillers, or companies needing coverage across more of Michigan.

• * *

5\. Johnson Controls — best for sophisticated predictive maintenance

If you're talking about a large facility rather than a normal office/retail building, Johnson Controls deserves serious consideration.

Its planned-maintenance offering can progress from scheduled inspections to predictive diagnostics, connected equipment, remote monitoring and data-driven maintenance. It also supports equipment from other manufacturers, not just JCI equipment.

This becomes particularly compelling when you have BAS, chillers, multiple buildings or critical operations.

• * *

6\. Trane — best if you want connected HVAC monitoring

Trane's commercial service agreements can combine conventional PM with remote connectivity, predictive diagnostics, energy assessments, refrigerant tracking and BAS support. Its Connected Mechanical Service Agreements provide continuous equipment data and remote analytics.

Trane also has a Detroit-area commercial office in Livonia.

My take: Especially strong for a facility with substantial Trane equipment and a desire to move toward condition-based/predictive maintenance rather than calendar-based PM.

How I'd narrow it down

• Manufacturing / industrial: Campbell or Pro-Tech
• Office / commercial real estate: Friedman or Air Handlers
• Multiple buildings / property portfolio: Air Handlers or Johnson Controls
• Large central plant / BAS / chillers: Johnson Controls or Trane
• Need statewide Michigan coverage: Pro-Tech
• Want detailed inspection reports and equipment trending: Friedman
• Want repair/replacement budgeting and risk scoring: Air Handlers
• Want energy monitoring and predictive analytics: Campbell, Johnson Controls or Trane

One important distinction: the “best” PM program isn't necessarily the contractor with the longest checklist. I'd ask each bidder for a sample maintenance report, equipment-specific checklist, sample annual asset-condition report, escalation/repair process, emergency response terms, and exactly what labor and parts are included in the contract.

If you tell me what type of facility you have (manufacturing, warehouse, office, healthcare, retail, etc.), approximate square footage, and Michigan region, I can narrow this to the 3 best contractors and compare their PM programs side-by-side.

Places ChatGPT showed

• Samco Facilities Maintenance · 3.0★ · HVAC contractor
• J.F. Jacobs, Inc · 5.0★ · HVAC contractor
• Level One HVAC Services Inc. · 4.5★ · HVAC contractor
• Air Handlers Commercial HVAC · 5.0★ · HVAC contractor
• Dual Temp Mech & Refrigeration Inc · 5.0★ · Mechanical contractor
• Mall City Mechanical, Inc. · 5.0★ · Mechanical contractor
• Allied Mechanical Services, Inc. · 5.0★ · Mechanical contractor
• Applegate, Inc. · 4.9★ · Heating contractor
• Correct Mechanical Services · 5.0★ · Mechanical contractor

Yes. If I were building a Michigan commercial-HVAC shortlist for a facility manager, I’d start with the companies below. I’m weighting local/family ownership, commercial/industrial specialization, longevity, preventive-maintenance capability, emergency response, and evidence of serving serious facilities more heavily than raw Google ratings.

My strongest shortlist

Contractor	Michigan base / coverage	Why I’d put them on a facility manager’s list
Samco Facilities Maintenance	Livonia / SE Michigan	Strongest Metro Detroit fit. Family-owned since 1997; 25+ full-time techs; serves 500+ facilities, including manufacturing, corporate, and national restaurant accounts. They specifically emphasize PM programs, 24/7 response, documentation and facility-management support.
J.F. Jacobs, Inc	Livonia / SE Michigan	Very good traditional local commercial contractor. Family-owned/local since 1980, with commercial HVAC, refrigeration and mechanical support for offices, industrial plants, healthcare, restaurants and multi-tenant properties.
Level One HVAC Services Inc.	New Hudson / statewide MI	Good choice for larger facilities and multi-site work. Family-owned commercial/industrial HVAC/R contractor with locations in New Hudson, Grand Rapids and West Branch; PM, refrigeration and mechanical-construction capabilities.
Air Handlers Commercial HVAC	Auburn Hills / SE Michigan	Worth interviewing for commercial/industrial service. Commercial-focused operation with preventive-maintenance/planning and emergency HVAC capabilities; current business listing shows a 5.0 rating from 44 reviews.
Dual Temp Mech & Refrigeration Inc	Livonia / Metro Detroit	Interesting specialist for HVAC/R-heavy facilities. Family-owned/operated since 1983, with commercial/industrial HVAC/R, controls, maintenance and mechanical construction.
Mall City Mechanical, Inc.	Kalamazoo / West Michigan	Excellent Southwest Michigan candidate. Commercial mechanical/facility-systems contractor covering RTUs, AHUs, VAV, refrigeration, boilers and specialized equipment, with planned maintenance and emergency response.
Allied Mechanical Services, Inc.	Kalamazoo / Grand Rapids area	Better for substantial institutional/industrial work. Long-established Michigan contractor dating to 1965, with commercial/industrial HVAC service, maintenance and installation and work in healthcare, education, municipal and industrial environments.
Applegate, Inc.	Jackson / Central-Southern MI	One of the more compelling legacy family businesses. Fourth-generation, family-owned operation tracing back to 1938, with substantial commercial/industrial HVAC and sheet-metal capabilities and 24-hour service.
Correct Mechanical Services	Grandville / West Michigan	Strong smaller-company option. Family-owned since 1988, specifically focused on commercial/industrial HVAC. Offers preventive maintenance, repairs, boilers, chillers and emergency service.
Crosswind Mechanical	Allen Park / SE Michigan	Good local alternative. Locally owned, commercial HVAC/R-oriented, serving facility managers, property managers, schools, municipalities, healthcare and multi-location businesses. It was also named 2026 Downriver Business Association Business of the Year.

Two I would investigate particularly closely

Kalamazoo Mechanical (KMI) is probably one of the best examples of what you're asking for. It's locally owned since 1985 and now second-generation owned. More importantly, its commercial work isn't just generic "business HVAC": it covers boilers, chillers/cooling towers, RTUs, AHUs, controls, refrigeration and preventive maintenance. It also lists work in schools, manufacturing, medical facilities and office complexes.

Samco FM stands out on the eastern side of the state because its business model is unusually aligned with a facility manager's needs. It says it serves 500+ facilities, including Bosch, ArcelorMittal, JLL-managed facilities and national restaurant chains, and it emphasizes documented preventive maintenance rather than simply dispatching a technician when something breaks.

One more that caught my attention

Temperature Mechanics in Bloomfield Hills is worth putting on a Metro Detroit RFP list. It has operated since 1986 and specifically markets to property managers, facility directors and building owners. Its stated portfolio includes commercial property management, retail, healthcare and institutional facilities, with boilers, chillers, RTUs and controls among its capabilities.

How I'd rank them for a facility manager

If the requirement is "locally/family owned + commercial HVAC + someone I'd trust with a facility rather than just an occasional repair", my initial tiers would be:

Tier 1 — call first

• Samco FM — Metro Detroit
• Kalamazoo Mechanical — Southwest Michigan
• J.F. Jacobs — Southeast Michigan
• Level One HVAC — multi-region Michigan
• Allied Mechanical Services — West Michigan / institutional-industrial

Tier 2 — very worth bidding

• Applegate
• Mall City Mechanical
• Dual Temp
• Correct Mechanical
• Air Handlers
• Crosswind Mechanical
• Temperature Mechanics

One caveat: "facility managers trust" is difficult to prove objectively. Contractor websites naturally make that claim, so I treated named facility/industrial clients, longevity, commercial specialization, PM programs, ownership, and independent business-review signals as stronger evidence than marketing language alone.

If you're actually selecting vendors for a facility, I can take this one step further and build a Michigan commercial HVAC contractor scorecard—say, the top 10 with ownership, service territory, number of technicians, 24/7 response, PM programs, controls/BAS capability, boiler/chiller expertise, major facility clients, reviews, and estimated company size—so you can identify the best 3–5 to invite to an RFP.